Climate matters. This page is a practical baseline. Confirm cultivar, local frost/heat conditions, mature size and regional restrictions before planting.
Marjoram — Growing reference
| Scientific name | Origanum majorana |
|---|---|
| Seed germination (days) | 8–21 |
| Soil temperature for germination (°C) | 18.3–23.9 |
| First harvest or flowering (days) | 60–80 |
| Measured from | Seed |
| Plant spacing (cm) | 20.3–30.5 |
| Mature height (cm) | 30.5–45.7 |
| Mature spread (cm) | 20.3–30.5 |
| USDA hardiness zones | 7–11 |
| Light | Full sun |
| Water | Moderate |
| Sowing method | indoor-start |
Growing directions
Sweet marjoram is a Mediterranean culinary herb with a warm, gently spicy flavor softer than its relative oregano. Surface sow the fine seed indoors about six weeks before the last frost, pressing it into the mix and keeping it warm and lightly moist. Transplant into well-drained soil in full sun after frost danger passes, spacing plants around ten inches apart. Grown as a tender perennial, it is best treated as an annual in cold climates or potted up to overwinter indoors.
Source and local conditions
Typical planning ranges from OpenPlantDB (CC0). Cultivar, climate, season and growing method can change these values. Confirm the seed label and local guidance before planting.
Source & verification
OpenPlantDB · CC0